Title :
Measurements of wideband multi-element transmit-receive diversity channels in the UMTS-band
Author :
Eggers, Patrick C F ; Kovács, István Z. ; Olesen, Kim ; Kuijpers, Gerben
Author_Institution :
Centre for PersonKommunikation, Aalborg Univ., Denmark
Abstract :
Three element transmit (Tx) (at base station BS) by four element receive (Rx) (at portable unit PU) antenna systems have been investigated at 2 GHz. Simultaneous sounding of all 3Tx by 4Rx=12 parallel links has been performed using a Doppler offset technique. This allows for investigations of simultaneous Tx-Rx diversity effectiveness as well as support for disclosing the degree of parallelism (independent channels). The measurement main-lobe bandwidth is 8 MHz. This allowed a maximum range of approx. 2.5 km with 0.4 W Tx-power and 23 dBi total antenna gain. This paper focuses on the fundamental power balance between links, which is a basic limiting factor for both diversity action and parallelism
Keywords :
antenna arrays; broadband networks; cellular radio; diversity reception; radio networks; receiving antennas; telecommunication channels; transmitting antennas; 0.4 W; 2 GHz; 23 dB; 8 MHz; CDMA; Doppler offset; UMTS-band; cellular radio; independent channels; maximum range; measurement main-lobe bandwidth; multi-element transmit-receive diversity channels; parallel links sounding; portable unit; simultaneous Tx-Rx diversity; total antenna gain; wideband diversity channels; wideband multi-element receive diversity antenna; wideband multi-element transmit antenna; 3G mobile communication; Antenna measurements; Bandwidth; Delay; Diversity reception; Frequency; Mobile antennas; Sampling methods; Semiconductor device measurement; Wideband;
Conference_Titel :
Vehicular Technology Conference, 2000. IEEE-VTS Fall VTC 2000. 52nd
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-6507-0
DOI :
10.1109/VETECF.2000.886112
